GU Old Style Replacement Door Lock Gearbox Centre Case 30mm / 28mm
Restore smooth and secure operation to your uPVC door with this high-quality replacement centre gearbox, designed specifically for GU old-style multipoint lock systems.
Positioned at the heart of the lock mechanism, the centre case is operated directly by the door handle and is commonly the first component to fail when a door lock becomes stiff, unreliable, or stops working altogether. Replacing the gearbox is a simple, cost-effective repair, often requiring only the removal and refitting of a few screws.
Key Features
- Designed for GU old-type uPVC door lock systems.
- Strong, hard-wearing construction for dependable operation.
- Reversible latch – suitable for left- or right-handed doors.
- Uses existing screw holes for straightforward installation.
- Cost-effective repair solution compared to full lock replacement.
Compatibility
- Suitable only for GU old-style locks.
- 30mm backset.
- 92mm PZ (handle centres)
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*Important Note: This gearbox is not universal. Please ensure your existing unit matches the measurements and images exactly before ordering, as different makes and models are not interchangeable.
Product Details:
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Brand: GlazeAssist
- Backset: 30mm
- PZ Centres: 92mm
- Full Measurements: (See Diagram Above)
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Manufacturer ID: N/A
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Range: Multipoint Locks
